Phyllonorycter esperella
In 3 days ~10% in a week ~20%
Phyllonorycter esperella is a moth of the family Gracillariidae. It is found from Sweden to the Pyrenees, Italy and Greece and from Great Britain to Ukraine. The wingspan is 7–9 mm. Adults are on wing in May and August in two generations in western Europe.
The larvae feed on Carpinus betulus and Ostrya carpinifolia. They mine the leaves of their host plant. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Dark Hornbeam Midget sighting in Berlin on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 801st most-seen of the 1065 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
July
In that month about 10% of wildlife watchers report a Dark Hornbeam Midget in Berlin on a given day, against under 5% in August to June, the lowest months. That is one of Berlin's wettest months, with about 80 mm of rain against 30 mm in April.
2nd of 3
Of the 3 cities where we can rate Dark Hornbeam Midget sightings, Berlin ranks 2nd at under 5%. The best odds are in Liverpool (United Kingdom, about 10%).
GBIF citizen-science records
It is estimated from how often the Dark Hornbeam Midget is recorded against all the insects logged in Berlin (7 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
